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公开(公告)号：US20190052931A1
公开(公告)日：2019-02-14
申请号：US16076635
申请日：2017-02-09
IPC分类号： H04N21/442 , H04N21/437 , H04N21/647
CPC分类号： H04N21/44209 , H04N21/437 , H04N21/442 , H04N21/64738
摘要： A pacing control device to perform pacing control on a content distributed from a content distribution device that performs streaming-based content distribution, includes an obtainer configured to obtain a communication quality threshold that corresponds to a communication environment in the pacing control device; and a controller configured not to make a request for the content to the content distribution device in a case where a communication quality in the pacing control device is lower than the communication quality threshold, and to make the request for the content to the content distribution device in a case where the communication quality is higher than the communication quality threshold.
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公开(公告)号：US20180213234A1
公开(公告)日：2018-07-26
申请号：US15747008
申请日：2016-06-09
发明人： Takuto KIMURA , Masahiro YOKOTA , Ken NISHIMATSU , Hiroshi YAMAMOTO , Kei TAKESHITA , Kazumichi SATO , Taichi KAWANO
IPC分类号： H04N19/146 , H04N21/258 , H04N21/2662 , H04N21/654
CPC分类号： H04N19/146 , H04N19/115 , H04N19/164 , H04N21/23439 , H04N21/2402 , H04N21/2407 , H04N21/258 , H04N21/25866 , H04N21/2662 , H04N21/44222 , H04N21/654
摘要： A delivery rate selection device, for selecting a delivery rate when delivering a video image from a video delivery server to a client in a video delivery service. When a delivery rate calculating unit receives from an inquiry source an inquiry of delivery rate for delivering a video image to a given user, a delivery rate calculating unit acquires presence or absence of a playback stall tolerance and presence or absence of an image quality deterioration tolerance of the given user from the user characteristic storage unit, selects an encoding rate from a plurality of encoding rates of the video image according to a combination of the presence or absence of a playback stall tolerance and the presence or absence of an image quality deterioration tolerance of the given user, and returns the selected encoding rate as the delivery rate to the inquiry source.
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公开(公告)号：US20220358526A1
公开(公告)日：2022-11-10
申请号：US17619976
申请日：2019-06-21
发明人： Masahiro YOKOTA , Masatoshi NAMIKI , Hiroto TAKECHI , Katsuhiro ARAYA , Masaaki INAMI , Daisaku SHIMAZAKI , Hideki MAEDA
IPC分类号： G06Q30/02
摘要： A part information management device (10) includes: a part setting information acquirement unit (111) that acquires, as part setting information, information for identifying parts set in apparatuses; a market data acquirement unit (112) that acquires, for each of the parts, market data related to a part change of the part; a risk estimation unit (114) that estimates a risk of a silent change by a predetermined estimation algorithm with use of the market data, the risk of the silent change indicating that the part is changed; and a part information generation unit (113) that generates part information with the part setting information acquired for each of the parts and the estimated risk of the silent change corresponding to each other and stores the part information in a storage unit (13).
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公开(公告)号：US20170257169A1
公开(公告)日：2017-09-07
申请号：US15528629
申请日：2015-11-27
发明人： Kei KITAMURA , Takashi KOTANIGAWA , Takafumi HAMANO , Kaoru ARAI , Masahiro YOKOTA , Hideki MAEDA , Yoshiaki YAMADA , Takuya OHARA , Kengo SHINTAKU
摘要： There is provided a tray which is connected to a plurality of transmitters that multicarrier-transmit a plurality of parallel signals by optical subcarriers. The framer selects time slots to be allocated to a path to be accommodated such that the number of optical subcarriers corresponding to the time slots satisfies a predetermined condition on the basis of empty time slots which are specified by path accommodation information indicating a correspondence between paths allocated to a client signal and time slots in a signal frame and the optical subcarriers corresponding to the empty time slots indicated by time slot information indicating a correspondence between the time slots and the optical subcarriers, and sets the selected time slot in the path accommodation information. The framer sets a client signal to the time slots on the basis of the path accommodation information.
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5.发明公开公开(公告)号：US20240330112A1
公开(公告)日：2024-10-03
申请号：US18740683
申请日：2024-06-12
CPC分类号： G06F11/1443 , H04L1/22
摘要： A transmission side transmission device includes: a first transmitter including a first switch; and a second transmitter including a second switch. A main signal is input to either the first transmitter or the second transmitter. The main signal input to the first transmitter is a first main signal and the main signal input to the second transmitter is a second main signal. The first transmitter and the second transmitter are configured such that, when the first transmitter detects a fault in the input first main signal: the second transmitter outputs the input second main signal to the first transmitter; and the first transmitter outputs the input second main signal via a first selector.
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公开(公告)号：US20230297476A1
公开(公告)日：2023-09-21
申请号：US18015857
申请日：2020-07-13
CPC分类号： G06F11/1443 , H04L1/22
摘要： A transmission side transmission device (40) includes a first transmitter (20) including a first switch (21) and a second transmitter (30) including a second switch (31). When the first transmitter (20) detects a fault in the first main signal, the second transmitter (30) outputs a duplicated signal of the second main signal to the first transmitter (20). The first selector (22) of the first transmitter (20) selects and outputs a duplicated signal of the input second main signal. When the second transmitter (30) detects a fault in the first switch (21), the second transmitter (30) selects and outputs the second main signal.
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公开(公告)号：US20220286762A1
公开(公告)日：2022-09-08
申请号：US17625028
申请日：2019-07-12
发明人： Masatoshi Namiki , Masahiro YOKOTA , Hiroki Kawahara , Hiroto TAKECHI , Katsuhiro Araya , Masaaki Inami , Daisaku Shimazaki , Hideki Maeda
IPC分类号： H04Q11/00
摘要： A monitoring control unit (22) of an OXC (20d) stores a management table (22a) in which pieces of information regarding a modulation mode, an FEC, and a frame mode of an optical signal are associated with each other, and sequentially changes the modulation mode, the FEC, and the frame mode according to the management table (22a) upon an LOS alert from a relay-side optical input/output unit (24) or an LOF alert from a DSP (25) being input thereto. Upon successfully receiving an appropriate optical signal according to the change, the monitoring control unit (22) acquires transmission source information included in the optical signal, and detects an occurrence of erroneous connection of an optical transmission line in an OXC (20g), which serves as a relay apparatus, when the acquired transmission source information indicates an optical cross-connect apparatus that is a transmission source different from an original transmission source.
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公开(公告)号：US20170324472A1
公开(公告)日：2017-11-09
申请号：US15526835
申请日：2015-11-27
发明人： Kei KITAMURA , Takafumi HAMANO , Takashi KOTANIGAWA , Kaoru ARAI , Masahiro YOKOTA , Hideki MAEDA , Yoshiaki YAMADA , Takuya OHARA , Kengo SHINTAKU
IPC分类号： H04B10/032 , H04J3/16
摘要： A framer in a transmission device allocates plural optical channel time slots to a plurality of logical prioritized paths. It allocates received client signals to the allocated time slots, and transmits the client signals by a plurality of optical subcarriers that use a plurality of optical wavelengths corresponding to the plurality of time slots. The framer includes: a time slot allocation unit that, in a case where an optical wavelength corresponding to a time slot allocated to a logical path having a high transmission priority is not used, allocates at least one of the plurality of time slots to the logical path having the high transmission priority while the time slot corresponding to the unused optical wavelength is avoided, to change the time slot allocated to the logical path having the high transmission priority.
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公开(公告)号：US20220353206A1
公开(公告)日：2022-11-03
申请号：US17619808
申请日：2019-06-20
发明人： Hiroto TAKECHI , Hideki MAEDA , Daisaku SHIMAZAKI , Masaaki INAMI , Katsuhiro ARAYA , Masatoshi NAMIKI , Masahiro YOKOTA
IPC分类号： H04L49/9057 , H04L49/90 , H04L49/253
摘要： A transmission device (10) includes a flow table (11) that stores identification information about an uninterruptible target flow; a transmission-side identification unit (12) that identifies whether a received packet is from the target flow or a non-target flow based on whether the received packet matches the identification information about the target flow stored in the flow table (11); a tag application unit (13) that applies, to packets from the target flow, an uninterruptible identifier indicating that the packets are from the target flow and a sequence number for distinguishing the packets from other packets; and a branch unit (14) that branches the packets from the target flow processed by the tag application unit (13) into packets to be transferred to an active path (41) among redundant routes and packets to be transferred to a backup path (42) among the redundant routes.
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公开(公告)号：US20170366288A1
公开(公告)日：2017-12-21
申请号：US15527274
申请日：2015-11-26
发明人： Masahiro YOKOTA , Takafumi HAMANO , Takashi KOTANIGAWA , Kaoru ARAI , Kei KITAMURA , Hideki MAEDA , Yoshiaki YAMADA , Takuya OHARA , Kengo SHINTAKU
IPC分类号： H04J3/16 , H04J14/08 , H04L12/801 , H04L12/939
CPC分类号： H04J3/1652 , H04B10/03 , H04J3/14 , H04J14/00 , H04J14/02 , H04J14/08 , H04L47/34 , H04L49/552
摘要： A framer in a transmission device that allocates time slots of an optical channel to a logical path, divides client signals received via the logical path to the time slots allocated to the logical path, and transmits the client signals by a plurality of optical suhcarriers using optical wavelengths correlated with the time slots includes: a time slot allocating unit configured to perform a process of reducing a transmission band of the logical path when some of the optical wavelengths are unavailable and changing the time slots allocated to the logical path depending on the reduced transmission band to avoid using the time slots corresponding to the unavailable optical wavelengths.
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